As reported by Petapixel, some customers are being shown a Photography Plan pricing of $19.99 per month instead of the up-until-now-normal $9.99 per month subscription fee. The Photography Plan (which includes Adobe Photoshop CC & Lightroom CC/Classic CC) has been the same price since it was introduced in 2015, representing an excellent value to customers (not many goods and services have remained the same price over that same period of time). I think it's safe to say that Adobe will raise its Photography Plan pricing at some point, but doubling its price in one fell swoop will leave most photographers very unhappy, especially those who were uncomfortable with subscription licensing in the first place.
Are Photoshop CC and Lightroom CC/Classic CC worth $19.99/mo? For working professionals and those serious about photography, absolutely. However, a majority of photography hobbyists will find the increased price significantly harder to swallow, leaving them searching for non-subscription based viable alternatives, such as the free and open-source GIMP.
It remains to be seen whether or not Adobe follows through with the price doubling strategy, but if you'd like to lock in the $9.99/mo rate for some time, you can purchase 12-month Photography Plan subscription licenses right now to extend the current plan pricing. In fact, I purchased a 12-month license last night after reading the news, and I'm considering purchasing another one.